ATS |

ATS 3.37 SERVICE PRIORITY

Future demand of increasing capacity will need the introduction of new prioritisation aspects. An example of Service Priority is the “Best-equipped, Best-Served” concept which is emerging as a new tool for the benefits of airspace users. IFATCA Policy is: Service … Continued

ATS 3.36 EMERGENCY DESCENT PROCEDURES

Existing ICAO recommended practices concerning emergency descent procedures provide guidance to pilots and ATS units in the event of an emergency descent. However, these provisions are outdated. Updates are needed to handle modern scenarios. Proposal was to switch TCAS to … Continued

ATS 3.35 TERRAIN AND OBSTACLE CHARTING

Work on SID and STAR phraseology changes and cancellation of level restrictions identified fundamental issues regarding ICAO procedures for terrain and obstacle clearance, primarily whether a restriction is ATC or terrain based. IFATCA Policy is: All published altitude restrictions should … Continued

ATS 3.34 TERRAIN AND OBSTACLE CLEARANCE RESPONSIBILITIES

During the work on SID and STAR phraseology changes and cancellation of level restrictions, fundamental issues arose regarding ICAO standards and procedures for terrain and obstacle clearance. ICAO provisions presently have problems: Currently most responsibility lies with pilots. Implied responsibility. … Continued

ATS 3.33 RELAY OF FLIGHT INFORMATION FROM AIR TRAFFIC SERVICE TO AIRCRAFT

ICAO SARPS state that Air Traffic Services are required to provide flight information. Despite it not being the most accurate and efficient method, it is often the Air Traffic Controller that assumes responsibility for broadcasting this information. Although several new … Continued

ATS 3.32 RECATEGORIZATION OF AIRCRAFT FOR WAKE TURBULENCE

In recent years, there have been a number of initiatives to review and update the wake turbulence categories defined by ICAO and the corresponding state variations. IFATCA Policy is: Any aircraft wake turbulence recategorisation shall: Conduct appropriate safety assessments, including … Continued

ATS 3.31 DYNAMIC SLOT TRADING PROCESS

User Driven Prioritization Process (UDPP) is a new concept designed to allow airspace users to have input into the allocation of delay in capacity constrained situations. UDPP will take advantage of other new concepts such as Collaborative Decision Making (CDM) … Continued

ATS 3.30 TRANSPONDER MANDATORY ZONES

Transponder Mandatory Zones (TMZ), defined areas in which the carriage of an operational transponder is required, have been implemented in several states to improve safety. IFATCA Policy is: All aircraft operating as IFR flights shall be equipped with a pressure-altitude … Continued

ATS 3.29 MERGING AND SEQUENCING CONCEPTS

Due to environmental, economical and operational reasons the need for more accurate merging and sequencing tools has arisen. IFATCA Policy is: IFATCA encourages the development of sequencing and merging tools provided that: They provide controllers with reliable and effective information. … Continued

ATS 3.28 CONTROLLED TIME OF ARRIVAL CONCEPT

The RTA function enables an aircraft to pass a waypoint at a predefined time. The CTA concept uses this capability in sequencing arriving traffic to the Terminal Area (TMA) by assigning such fix times to aircraft. CTA and RTA are … Continued